40540105422440 has 128 divisors (see below), whose sum is σ = 102214700098560. Its totient is φ = 14373753498624.

The previous prime is 40540105422413. The next prime is 40540105422469. The reversal of 40540105422440 is 4422450104504.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40540105422440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14353364 + ... + 16944003.

It is an arithmetic number, because the mean of its divisors is an integer number (798552344520).

Almost surely, 2^{40540105422440} is an apocalyptic number.

40540105422440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40540105422440 is an abundant number, since it is smaller than the sum of its proper divisors (61674594676120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40540105422440 is a wasteful number, since it uses less digits than its factorization.

40540105422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31297491 (or 31297487 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 40540105422440 its reverse (4422450104504), we get a palindrome (44962555526944).

The spelling of 40540105422440 in words is "forty trillion, five hundred forty billion, one hundred five million, four hundred twenty-two thousand, four hundred forty".